Columbia University

New tool makes online personal data more transparent

The web can be an opaque black box: it leverages our personal information without our knowledge or control. When, for instance, a user sees an ad about depression online, she may not realize that she is seeing it because ...

dateAug 18, 2014 in Internet
shares0 comments 0

Researchers Shed Light on Birth of the First Stars

(PhysOrg.com) -- In the beginning, there were hydrogen and helium. Created in the first three minutes after the Big Bang, these elements gave rise to all other elements in the universe. The factories that made this possible ...

dateJul 01, 2010 in Astronomy
shares0 comments 4

Maybe Ben Franklin was wrong

(PhysOrg.com) -- The eruption of the Laki volcano in Iceland in 1783-84 set off a cascade of catastrophe, spewing sulfuric clouds into Europe and eventually around the world. Poisonous mists and a resulting famine from loss ...

dateApr 07, 2011 in Earth Sciences
shares0 comments 8

What geology has to say about global warming

Last month I gave a public lecture entitled, "When Maine was California," to an audience in a small town in Maine. It drew parallels between California, today, and Maine, 400 million years ago, when similar geologic processes ...

dateJul 14, 2014 in Earth Sciences
shares0 comments 196